In the Butte Priority Soils Operable Unit (BPSOU), there are 26 historic mining-related sites (about 100 acres) that were reclaimed to a standard that may not meet the requirements of the Butte Hill Revegetation Standards (BHRS). In the proposed remedy, these sites would be evaluated by Butte-Silver Bow County to determine if they meet the BHRS requirements. If not, the sites would receive further reclamation. All proposed reclamation work would be performed by Butte Silver-Bow County using funds provided by Atlantic Ricfield Company.
Any reclamation and other construction activities that are performed by Butte-Silver Bow County at an insufficiently reclaimed site would be conducted under the direction of the EPA, in consultation with MDEQ. This work may include import and placement of additional soil, revegetation, and/or construction of stormwater controls, which may include additions or upgrades to any curbs and gutters around the site.